class SchemaCache in Drupal 7

Extends DrupalCacheArray to allow for dynamic building of the schema cache.

Hierarchy

• class \DrupalCacheArray implements \ArrayAccess
  • class \SchemaCache

Related topics

Schema API

API to handle database schemas.

File

includes/bootstrap.inc, line 3301

Functions that need to be loaded on every Drupal request.

class SchemaCache extends DrupalCacheArray {

  /**
   * Constructs a SchemaCache object.
   */
  public function __construct() {

    // Cache by request method.
    parent::__construct('schema:runtime:' . ($_SERVER['REQUEST_METHOD'] == 'GET'), 'cache');
  }

  /**
   * Overrides DrupalCacheArray::resolveCacheMiss().
   */
  protected function resolveCacheMiss($offset) {
    $complete_schema = drupal_get_complete_schema();
    $value = isset($complete_schema[$offset]) ? $complete_schema[$offset] : NULL;
    $this->storage[$offset] = $value;
    $this
      ->persist($offset);
    return $value;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DrupalCacheArray::$bin	protected	property	A bin to pass to cache_set() and cache_get().
DrupalCacheArray::$cid	protected	property	A cid to pass to cache_set() and cache_get().
DrupalCacheArray::$keysToPersist	protected	property	An array of keys to add to the cache at the end of the request.
DrupalCacheArray::$storage	protected	property	Storage for the data itself.
DrupalCacheArray::offsetExists	public	function	Implements ArrayAccess::offsetExists().	1
DrupalCacheArray::offsetGet	public	function	Implements ArrayAccess::offsetGet().	1
DrupalCacheArray::offsetSet	public	function	Implements ArrayAccess::offsetSet().
DrupalCacheArray::offsetUnset	public	function	Implements ArrayAccess::offsetUnset().
DrupalCacheArray::persist	protected	function	Flags an offset value to be written to the persistent cache.
DrupalCacheArray::set	protected	function	Writes a value to the persistent cache immediately.	1
DrupalCacheArray::__destruct	public	function	Destructs the DrupalCacheArray object.
SchemaCache::resolveCacheMiss	protected	function	Overrides DrupalCacheArray::resolveCacheMiss(). Overrides DrupalCacheArray::resolveCacheMiss
SchemaCache::__construct	public	function	Constructs a SchemaCache object. Overrides DrupalCacheArray::__construct